//_________________________________________________________________________
// A Particle modified by PHOS response and produced by AliPHOSvFast
// To become a general class of AliRoot ?
-//
+//--
+// This is also a base class for AliPHOSRecParticle produced by AliPHOSPIDv1
+// The rec.particle type is to be defined by AliPHOSvFast or AliPHOSPIDv1
+//--
//*-- Author: Yves Schutz (SUBATECH)
// --- ROOT system ---
//____________________________________________________________________________
AliPHOSFastRecParticle::AliPHOSFastRecParticle(const AliPHOSFastRecParticle & rp)
+ : TParticle(rp)
{
// copy ctor
}
//____________________________________________________________________________
-TString AliPHOSFastRecParticle::Name()const
+Bool_t AliPHOSFastRecParticle::IsPhoton(TString purity) const
+{
+ // Rec.Particle is a photon if it has a photon-like shape, fast and neutral
+ // photon-like shape is defined with a purity "low", "medium" or "high"
+
+ purity.ToLower();
+ Bool_t photonLike = kFALSE;
+ if (purity == "low" ) photonLike = TestPIDBit(6);
+ else if (purity == "medium") photonLike = TestPIDBit(7);
+ else if (purity == "high" ) photonLike = TestPIDBit(8);
+ else Error("IsPhoton","Wrong purity type: \'%s\'",purity.Data());
+ if (photonLike && // photon by PCA
+ (TestPIDBit(5)||TestPIDBit(4)||TestPIDBit(3))&& // fast by TOF
+ (TestPIDBit(2)||TestPIDBit(1)||TestPIDBit(0))) // neutral by CPV
+ return kTRUE ;
+ else
+ return kFALSE;
+}
+
+//____________________________________________________________________________
+Bool_t AliPHOSFastRecParticle::IsPi0(TString purity) const
+{
+ // Rec.Particle is a pi0 if it has a pi0-like shape, fast and neutral
+ // pi0-like shape is defined with a purity "low", "medium" or "high"
+
+ purity.ToLower();
+ Bool_t pi0Like = kFALSE;
+ if (purity == "low" ) pi0Like = TestPIDBit(9);
+ else if (purity == "medium") pi0Like = TestPIDBit(10);
+ else if (purity == "high" ) pi0Like = TestPIDBit(11);
+ else Error("IsPi0","Wrong purity type: %s",purity.Data());
+ if (pi0Like && // pi0 by PCA
+ (TestPIDBit(5)||TestPIDBit(4)||TestPIDBit(3))&& // fast by TOF
+ (TestPIDBit(2)||TestPIDBit(1)||TestPIDBit(0))) // neutral by CPV
+ return kTRUE ;
+ else
+ return kFALSE;
+}
+
+//____________________________________________________________________________
+Bool_t AliPHOSFastRecParticle::IsElectron(TString purity) const
+{
+ // Rec.Particle is an electron if it has a photon-like shape, fast and charged
+ // photon-like shape is defined with a purity "low", "medium" or "high"
+
+ purity.ToLower();
+ Bool_t photonLike = kFALSE;
+ if (purity == "low" ) photonLike = TestPIDBit(6);
+ else if (purity == "medium") photonLike = TestPIDBit(7);
+ else if (purity == "high" ) photonLike = TestPIDBit(8);
+ else Error("IsElectron","Wrong purity type: %s",purity.Data());
+ if (photonLike && // photon by PCA
+ (TestPIDBit(5)||TestPIDBit(4)||TestPIDBit(3))&& // fast by TOF
+ !(TestPIDBit(2)||TestPIDBit(1)||TestPIDBit(0))) // charged by CPV
+ return kTRUE ;
+ else
+ return kFALSE;
+}
+
+//____________________________________________________________________________
+Bool_t AliPHOSFastRecParticle::IsHardPhoton() const
+{
+ // Rec.Particle is a hard photon (E > 30 GeV) if its second moment M2x
+ // corresponds to photons
+ if (TestPIDBit(12))
+ return kTRUE;
+ else
+ return kFALSE;
+}
+
+//____________________________________________________________________________
+Bool_t AliPHOSFastRecParticle::IsHardPi0() const
+{
+ // Rec.Particle is a hard pi0 (E > 30 GeV) if its second moment M2x
+ // corresponds to pi0
+ if (TestPIDBit(13))
+ return kTRUE;
+ else
+ return kFALSE;
+}
+
+//____________________________________________________________________________
+Bool_t AliPHOSFastRecParticle::IsHadron() const
+{
+ // Rec.Particle is an hadron if it does not look like
+ // a low-purity photon nor low-purity pi0
+
+ if ( !TestPIDBit(6) && !TestPIDBit(9) ) // not photon nor pi0
+ return kTRUE ;
+ else
+ return kFALSE;
+}
+
+//____________________________________________________________________________
+Bool_t AliPHOSFastRecParticle::IsChargedHadron() const
+{
+ // Rec.Particle is a charged hadron if it does not look like
+ // a low-purity photon nor low-purity pi0 and is low-purity charged
+
+ if ( !TestPIDBit(6) && !TestPIDBit(9) && // not photon nor pi0
+ !TestPIDBit(2)) // charged by CPV
+ return kTRUE ;
+ else
+ return kFALSE;
+}
+
+//____________________________________________________________________________
+Bool_t AliPHOSFastRecParticle::IsNeutralHadron() const
+{
+ // Rec.Particle is a neutral hadron if it does not look like
+ // a low-purity photon nor low-purity pi0 and is high-purity neutral
+
+ if ( !TestPIDBit(6) && !TestPIDBit(9) && // not photon nor pi0
+ TestPIDBit(2)) // neutral by CPV
+ return kTRUE ;
+ else
+ return kFALSE;
+}
+
+//____________________________________________________________________________
+Bool_t AliPHOSFastRecParticle::IsFastChargedHadron() const
+{
+ // Rec.Particle is a fast charged hadron if it does not look like
+ // a low-purity photon nor low-purity pi0, is low-purity charged
+ // and is high-purity fast
+
+ if ( !TestPIDBit(6) && !TestPIDBit(9) && // not photon nor pi0
+ !TestPIDBit(2) && // charged by CPV
+ TestPIDBit(5)) // fast by TOF
+ return kTRUE ;
+ else
+ return kFALSE;
+}
+
+//____________________________________________________________________________
+Bool_t AliPHOSFastRecParticle::IsSlowChargedHadron() const
+{
+ // Rec.Particle is a slow neutral hadron if it does not look like
+ // a low-purity photon nor low-purity pi0, is high-purity neutral
+ // and is not high-purity fast
+
+ if ( !TestPIDBit(6) && !TestPIDBit(9) && // not photon nor pi0
+ !TestPIDBit(2) && // charged by CPV
+ !TestPIDBit(5)) // slow by TOF
+ return kTRUE ;
+ else
+ return kFALSE;
+
+}
+
+//____________________________________________________________________________
+Bool_t AliPHOSFastRecParticle::IsFastNeutralHadron() const
+{
+ // Rec.Particle is a fast neutral hadron if it does not look like
+ // a low-purity photon nor low-purity pi0, is high-purity neutral
+ // and is high-purity fast
+
+ if ( !TestPIDBit(6) && !TestPIDBit(9) && // not photon nor pi0
+ TestPIDBit(2) && // neutral by CPV
+ TestPIDBit(5)) // fast by TOF
+ return kTRUE ;
+ else
+ return kFALSE;
+}
+
+//____________________________________________________________________________
+Bool_t AliPHOSFastRecParticle::IsSlowNeutralHadron() const
+{
+ // Rec.Particle is a slow neutral hadron if it does not look like
+ // a low-purity photon nor low-purity pi0, is high-purity neutral
+ // and is not high-purity fast
+
+ if ( !TestPIDBit(6) && !TestPIDBit(9) && // not photon nor pi0
+ TestPIDBit(2) && // neutral by CPV
+ !TestPIDBit(5)) // slow by TOF
+ return kTRUE ;
+ else
+ return kFALSE;
+}
+
+//____________________________________________________________________________
+TString AliPHOSFastRecParticle::Name() const
{
// Returns the name of the particle type (only valid if PIDv1 is employed)
TString name ;
+
+ name = "Undefined particle" ;
- if(fType == 127)
- name = "PHOTON_LOPU_HIEF" ; //PCA = 001 TOF = 111 CPV = 111
-
- if(fType == 511)
- name = "PHOTON_HIPU_LOEF" ; //PCA = 011 TOF = 111 CPV = 111
-
- if(fType == 255)
- name = "PHOTON_MED_PU_EF" ; //PCA = 111 TOF = 111 CPV = 111
-
- if((fType == 383)||(fType == 447))
- name = "PHOTON_STRANGE" ; //PCA = 101 or 110 TOF = 111 CPV = 111
-
- if(fType == 63)
- name = "NEUTRAL_FAST_HADRON" ; //PCA = 000 TOF = 111 CPV = 111
-
- if((fType == 504) || (fType == 505) ||(fType == 248)||(fType == 249)||(fType == 120)||(fType == 121))
- name = "CHARGED_FAST_EM" ; //PCA = 111, 011 or 001 TOF =111 CPV = 000 or 001
-
- if((fType == 56)||(fType == 57))
- name = "CHARGED_FAST_HADRON" ; //PCA = 000 TOF = 111 CPV = 000 or 001
-
- if((fType < 8)&&(fType > 0))
- name = "NEUTRAL_SLOW_HADRON" ; //PCA = 000 TOF = 000 CPV = 001 or 011 or 111
-
- if((fType == 0))
- name = "CHARGED_SLOW_HADRON" ; //PCA = 000 TOF = 000 CPV = 000
-
- if((fType == 448) || (fType == 449) ||(fType == 192)||(fType == 193)||(fType == 64)||(fType == 64))
- name = "CHARGED_SLOW_EM" ; //PCA = 111, 011 or 001 TOF =000 CPV = 000 or 001
-
+ if (IsPhoton("low"))
+ name = "Photon low purity ";
+ else if (IsPhoton("medium"))
+ name = "Photon medium purity";
+ else if (IsPhoton("high"))
+ name = "Photon high purity ";
+
+ if (IsPi0("low"))
+ name += "Pi0 low purity ";
+ else if (IsPi0("medium"))
+ name += "Pi0 medium purity ";
+ else if (IsPi0("high"))
+ name += "Pi0 high purity ";
+
+ if (IsElectron("low"))
+ name += "Electron low purity ";
+ else if (IsElectron("medium"))
+ name += "Electron medium purity ";
+ else if (IsElectron("high"))
+ name += "Electron high purity ";
+
+ if (IsHadron()) {
+ name = "hadron";
+ if (IsChargedHadron()) {
+ name.Prepend("charged ");
+ if (IsFastChargedHadron())
+ name.Prepend("fast ");
+ else if (IsSlowChargedHadron())
+ name.Prepend("slow ");
+ }
+ else if (IsNeutralHadron()) {
+ name.Prepend("neutral ");
+ if (IsFastNeutralHadron())
+ name.Prepend("fast ");
+ else if (IsSlowNeutralHadron())
+ name.Prepend("slow ");
+ }
+ }
+
return name ;
}
//______________________________________________________________________________
void AliPHOSFastRecParticle::SetType(Int_t type) {
// sets the particle type
+ // bit-mask of the particle type means the following:
+ // bits 0,1,2 - neutral particle with low, medium and high purity
+ // bits 3.4,5 - fast particle with low, medium and high purity
+ // bits 6.7,8 - photon shower with low, medium and high purity
+ // bits 9,10,11 - hard-pi0 shower with low, medium and high purity
+
fType = type ;
if((type == 127) || (fType == 511) || (fType == 255) ||(fType == 383)||(fType == 447)){
void AliPHOSFastRecParticle::Print(Option_t * opt)const
{
// Print the type, energy and momentum of the reconstructed particle
-
+
TString message ;
- message = "AliPHOSFastRecParticle > type is %s\n" ;
- message += " Energy = %f\n" ;
- message += " Px = %f\n" ;
- message += " Py = %f\n" ;
- message += " Pz = %f\n" ;
+ message = "\n PID bits are %d%d%d %d%d%d %d%d%d %d%d%d" ;
+ message += ", type is \"%s\"\n" ;
+ message += " (E,Px,Py,Pz) = (% .3e, % .3e, % .3e, % .3e) GeV\n" ;
Info("Print", message.Data(),
+ TestPIDBit(0),TestPIDBit(1),
+ TestPIDBit(2),TestPIDBit(3),
+ TestPIDBit(4),TestPIDBit(5),
+ TestPIDBit(6),TestPIDBit(7),
+ TestPIDBit(8),TestPIDBit(9),
+ TestPIDBit(10),TestPIDBit(11),
Name().Data(),
- fE,
- fPx,
- fPy,
- fPz );
+ Energy(),
+ Px(),
+ Py(),
+ Pz() );
}
git://git.uio.no / u / mrichter / AliRoot.git / blobdiff